<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			var arr = ['abc','aaa','abc','bbb','ab','ac','bbb'];
			var arrNew = [];
			for(var i=0;i<arr.length;i++){
				if(arrNew.indexOf(arr[i])==-1){
					arrNew.push(arr[i]);
				}
			}
			console.log(arrNew);
		</script>
	</body>
</html>
